"Rename symbol under cursor" doesn't work with array indices in case of warning

Let me suggest such code example

vector<int> hello(10);
int world = 2;
cout << hello[world];

In this case if I would like to refactor world and change it's name, it would change every occurence except inside braces if it is covered with warning about signed conversion.
If I would change world type to size_t the refactor would work nice.